Implemented new fence syncs which replaces the old sync points.

content/common/gpu/gpu_command_buffer_stub.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_COMMON_GPU_GPU_COMMAND_BUFFER_STUB_H_
 #define CONTENT_COMMON_GPU_GPU_COMMAND_BUFFER_STUB_H_
 
 #include <deque>
 #include <string>
 #include <vector>
@@ skipping 184 matching lines @@
 
   void OnEnsureBackbuffer();
 
   void OnRetireSyncPoint(uint32 sync_point);
   bool OnWaitSyncPoint(uint32 sync_point);
   void OnWaitSyncPointCompleted(uint32 sync_point);
   void OnSignalSyncPoint(uint32 sync_point, uint32 id);
   void OnSignalSyncPointAck(uint32 id);
   void OnSignalQuery(uint32 query, uint32 id);
 
+  void OnFenceSyncRelease(uint64_t release);
+  bool OnWaitFenceSync(gpu::CommandBufferNamespace namespace_id,
+                       uint64_t command_buffer_id,
+                       uint64_t release);
+  void OnWaitFenceSyncCompleted(gpu::CommandBufferNamespace namespace_id,
+                                uint64_t command_buffer_id,
+                                uint64_t release);
+
   void OnCreateImage(int32 id,
                      gfx::GpuMemoryBufferHandle handle,
                      gfx::Size size,
                      gfx::BufferFormat format,
                      uint32 internalformat);
   void OnDestroyImage(int32 id);
   void OnCreateStreamTexture(uint32 texture_id,
                              int32 stream_id,
                              bool* succeeded);
 
@@ skipping 11 matching lines @@
   void PerformWork();
 
   // Schedule processing of delayed work. This updates the time at which
   // delayed work should be processed. |process_delayed_work_time_| is
   // updated to current time + delay. Call this after processing some amount
   // of delayed work.
   void ScheduleDelayedWork(base::TimeDelta delay);
 
   bool CheckContextLost();
   void CheckCompleteWaits();
-  void PullTextureUpdates(uint32 sync_point);
+  void PullTextureUpdates(gpu::CommandBufferNamespace namespace_id,
+                          uint64_t command_buffer_id,
+                          uint32_t release);
 
   // The lifetime of objects of this class is managed by a GpuChannel. The
   // GpuChannels destroy all the GpuCommandBufferStubs that they own when they
   // are destroyed. So a raw pointer is safe.
   GpuChannel* channel_;
 
   // Task runner for main thread.
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
   // The group of contexts that share namespaces with this context.
@@ skipping 40 matching lines @@
   size_t total_gpu_memory_;
   scoped_ptr<WaitForCommandState> wait_for_token_;
   scoped_ptr<WaitForCommandState> wait_for_get_offset_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuCommandBufferStub);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_GPU_COMMAND_BUFFER_STUB_H_